SE9703968L - Metod för blekning av cellulosamassa - Google Patents
Metod för blekning av cellulosamassaInfo
- Publication number
- SE9703968L SE9703968L SE9703968A SE9703968A SE9703968L SE 9703968 L SE9703968 L SE 9703968L SE 9703968 A SE9703968 A SE 9703968A SE 9703968 A SE9703968 A SE 9703968A SE 9703968 L SE9703968 L SE 9703968L
- Authority
- SE
- Sweden
- Prior art keywords
- stands
- average added
- mol number
- added mol
- carbon atoms
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22751995 | 1995-08-10 | ||
JP31951295 | 1995-11-13 | ||
JP8198289A JP2841048B2 (ja) | 1995-08-10 | 1996-07-08 | セルロースパルプ用漂白助剤および漂白方法 |
PCT/JP1996/002204 WO1997006304A1 (fr) | 1995-08-10 | 1996-08-06 | Procede permettant de blanchir de la pate de cellulose |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9703968D0 SE9703968D0 (sv) | 1997-10-30 |
SE9703968L true SE9703968L (sv) | 1997-12-19 |
SE523054C2 SE523054C2 (sv) | 2004-03-23 |
Family
ID=27327483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9703968A SE523054C2 (sv) | 1995-08-10 | 1997-10-30 | Blekning av cellulosamassa med syre eller peroxid i närvaro av blekningshjälpmedel |
Country Status (5)
Country | Link |
---|---|
US (2) | US6248209B1 ( ) |
CA (1) | CA2220408A1 ( ) |
FI (1) | FI119109B ( ) |
SE (1) | SE523054C2 ( ) |
WO (1) | WO1997006304A1 ( ) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19934607A1 (de) * | 1999-07-23 | 2001-01-25 | Basf Ag | Hilfsmittel und Verfahren zur Reinigung und zum Bleichen von Zellulose-Pulpe |
AU2007253774C1 (en) * | 2006-05-19 | 2012-03-22 | The Research Foundation Of State University Of New York | Methods for carbonate pretreatment and pulping of cellulosic material |
US20080087390A1 (en) * | 2006-10-11 | 2008-04-17 | Fort James Corporation | Multi-step pulp bleaching |
US8303767B2 (en) * | 2008-03-18 | 2012-11-06 | The Research Foundation Of State University Of New York | Methods of pretreating comminuted cellulosic material with carbonate-containing solutions |
CA2762712C (en) * | 2009-05-29 | 2017-08-29 | Solvay Sa | Process for the bleaching of mechanical paper pulp |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2610556C2 (de) | 1976-03-12 | 1978-02-02 | Siemens AG, 1000 Berlin und 8000 München | Vorrichtung zum Verteilen strömender Medien über einen Strömungsquerschnitt |
JPS52114708A (en) | 1976-03-19 | 1977-09-26 | Lion Fat Oil Co Ltd | Reagents used for decolorizing printed ink on used paper |
US5211811A (en) * | 1989-02-15 | 1993-05-18 | Union Camp Patent Holding, Inc. | Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification |
SE467260B (sv) | 1989-12-29 | 1992-06-22 | Kamyr Ab | Blekning av cellulosamassa med klordioxid och ozon i ett och samma steg |
JP2852105B2 (ja) | 1990-07-03 | 1999-01-27 | 株式会社日本紙パルプ研究所 | パルプのオゾン漂白法 |
JPH04281084A (ja) * | 1991-03-07 | 1992-10-06 | Kao Corp | 脱墨剤 |
JP2593766B2 (ja) * | 1991-08-30 | 1997-03-26 | ライオン株式会社 | フローテーション用脱墨剤 |
JPH05186987A (ja) | 1992-01-07 | 1993-07-27 | Sanyo Chem Ind Ltd | セルロースパルプの漂白方法 |
JP2597934B2 (ja) * | 1992-03-12 | 1997-04-09 | 株式会社日新化学研究所 | 故紙再生用脱墨剤 |
JPH05279979A (ja) | 1992-03-26 | 1993-10-26 | Mitsubishi Paper Mills Ltd | セルロースパルプの漂白法 |
-
1996
- 1996-08-06 WO PCT/JP1996/002204 patent/WO1997006304A1/ja active Application Filing
- 1996-08-06 CA CA002220408A patent/CA2220408A1/en not_active Abandoned
- 1996-08-06 US US08/945,313 patent/US6248209B1/en not_active Expired - Fee Related
-
1997
- 1997-10-30 SE SE9703968A patent/SE523054C2/sv unknown
- 1997-11-19 FI FI974284A patent/FI119109B/fi active
-
2001
- 2001-04-13 US US09/833,617 patent/US6342124B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FI119109B (fi) | 2008-07-31 |
SE9703968D0 (sv) | 1997-10-30 |
US6248209B1 (en) | 2001-06-19 |
US20010017196A1 (en) | 2001-08-30 |
FI974284A0 (fi) | 1997-11-19 |
WO1997006304A1 (fr) | 1997-02-20 |
SE523054C2 (sv) | 2004-03-23 |
FI974284A (fi) | 1997-11-19 |
US6342124B2 (en) | 2002-01-29 |
CA2220408A1 (en) | 1997-02-20 |
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